expect_is()
is an older form that uses inherits()
without checking
whether x
is S3, S4, or neither. Instead, I'd recommend using
expect_type()
, expect_s3_class()
or expect_s4_class()
to more clearly
convey your intent.
expect_is(object, class, info = NULL, label = NULL)
object | Object to test. Supports limited unquoting to make it easier to generate readable failures within a function or for loop. See quasi_label for more details. |
---|---|
class | Either a character vector of class names, or
for |
expect_is()
is formally deprecated in the 3rd edition.